Before ever attempting to find a Drughub onion link, you must secure your operating environment. Using Windows or macOS to browse the darkweb leaves digital footprints (thumbnails, logs, registry entries) that can be recovered by forensic analysis.
The industry standard for accessing Drughub market is Tails OS (The Amnesic Incognito Live System). This operating system runs from a USB stick and forces all internet traffic through the Tor network. Upon shutdown, it wipes the RAM, leaving zero trace of your Drughub login history or PGP keys on the computer.
Security Warning
Never run Tor Browser in full-screen mode on Windows. This changes your "browser fingerprint" (resolution size), making you identifiable across different darknet sites. Tails OS handles window resizing automatically to prevent this.